Impaired drivers are one of the many risks drivers face on the Highway Transportation System. List 3 signs that a driver could be potentially impaired. Explain a strategy that you can use to keep yourself safe

An inventor claimed that a cyclic engine produces 0.4 kj of work per kj of heat extracted from a heat reservoir. a)- the cycle operates between 380 °c and 25 °c. is the claim valid? b)- if the cycle operates between 380 °c and 125 °c, would the claim be valid?